Rack for warp tying machines



Dec. 5, 1939. H, P. EANES 2,182,288

RACK FOR WARP TYING MACHINES Filed July 13, 1954 2 Sheets-Sheet lv BY ,L.."4.ATTORNEY Dec. 5, 1939.

H. P EANES RACK FOR WARP TYING MACHINES Filed July 15, 1934 2 Sheets-Sheet 2 BY QMJJ ATTORNEY 25 '8, and the adjustable collars I0.

Patented Dec. 5, 1939 UNITED s'iargg OFFIQE Claims.

My invention relates to an improvement in a rack for warp tying machines.

The purpose of my invention is to provide a rack for holding two layers of warp threads in a 5 position to be picked up by a knot tying machine, such as the one disclosed in an application filed by me on even date, Ser. No. 735,037.

A further object of this invention is to provide a rack on which the warp threads can be easily l0 placed and adjusted in proper position. In the accompanying drawings, Fig. l is a plan View; Fig. 2 is a side elevation; Fig. 3 is a cross section, on the line 33, of Fig. 2;

Fig. 4 is an enlarged cross-section of one thread holding bar; and

Fig. 5 is a perspective of a locking ring. The frame 2 is mounted on any suitable carriage, and is provided on its upper edge with the tracks'4, on which the tying machine (not shown) rides.

The uprights 6 are secured to the frame 2 in a suitable manner, such as by means of the brackets On the upper ends of these uprights 6, I provide on one side of the rack, the bar I2 which is U-shape in cross section, as shown in Fig.3. The bar I4 which is similar to the bar I2 is secured to an arm I6 by means of the bracket I8, and is placed along side the bar I2 and held there by the bracket 20 which is'secured to the uprights 6 by means of a screw or bolt. 7

The bottom of the channels within the bars I2 and I4 are covered with rubber strips 22, on which the rods 24 rest when placed within the channels.

On the other side of the machine I utilize cylindrical bars 26 and 26, which are channeled similarly to the bars I2 and I4, which channels are lined with rubber strips 22 on which the rods 24 rest when placed in position.

When it is desirable to place the warp threads on this rack, the arm I6 carrying the bracket I8 and the bar I4 is swung upwardly on the bar 28 as a pivot point and removed entirely from the top of the rack as shown in the dotted lines of Fig. 3.

When this portion of the rack is removed and has assumed the position shown in dotted lines in Fig. 3, the rods 24 and 24' are removed from the bars I2 and 26. When this is done, the warp threads 30 are placed first over the bar I2 and secured in their proper position by means of the rod 24. After the threads 30 are secured to the bar l2 they are combed across the rack and are secured to the cylindrical bar 26, by means of the bar 2 3' which is then looked into position by means of the locking ring 32.

After this set of warp threads has been secured V in prop-er position on the bar I2 and the cylindrical bar 26, the arm I6 with its bracket I8 and the bar It are swung back into position as shown in Figs; 1 and 3, and the warp threads -34 are properly positioned on the bar I4 and the cylindrical bar 28, in the same manner as described above.

The cylindrical bars 26 and 28 are provided at their ends with knurled nuts 36 and 38 respectively, at one end thereof, and with the knurled handles 48 and 42, at the other end thereof.

By holding the handle 4 and turning the cylindrical bar 26, any desired tension may be placed on the warp threads 86 after which the knurled nut 35 is'tightened to secure the bar 26 in its adjusted position. The bar 28 may be similarly adjusted by turning the handle 42 and securing the cylindrical bar 28 in position by tightening the knurled nut 38.

The upper sides of the bar I2 and the cylindrical bar 26 are arranged in a horizontal plane, and the upper edges of the bar I4 and cylindrical bar 28, are arranged in a slightly higher horizontal plane than the upper surfaces of the bars I2 and 26, so that the warp threads 30 and 34 :30 will be spaced apart slightly, as shown in Fig. 3.

The locking rings 32 are mounted on the cylindrical bars 26 and 28 at opposite ends thereof, so that after the rods 24 have been forced down within the channels of the bars 26 and 28 they 535 may be securely held there by turning the looking ring 32, so it will assume a position shown in Fig. 3. The ends of the rods 24' away from the locking ring 32 are held down within the channels in the bars 25 and 26 by means of a projection 44 thereon which extends beneath the lip 46 of the bars 26 and 28 in the end of the channels, as

' shown in Fig. 2.

The bars I4 and 28 may he slid longitudinally of the frame 2 a short distance so that the warp 5 threads 38 and 34 may be brought into perfect alignment. This adjustment is accomplished by means of a hand-wheel 48, which is secured to one end of a shaft 58 mounted on the frame -2 by means of suitable brackets 52. At the other 50 end of the shaft 55, I provide a worm gear 54 which meshes with the gear 56 mounted on a cross-shaft 58 in the end of the frame 2.

The rod 60 extends upwardly from the shaft 58 at a convenient point approximately in the 5 far center of the frame 2 and projects through an ear 62 on the arm It. By turning the handwheel 48 and the shaft 50, the worm gear 54 is turned and consequently the shaft 58, which in turn moves the upright rod either backward or forward, and thus moves the bars l4 and 28 longitudinally of the bars l2 and 26 to effect an adjustment between the warp threads 3|] and 3t which are positioned on the bars l2 and 26, and I4 and. 28, respectively.

In Fig. 4 I have shown more in detail the manner in which the warp thread 30 is secured by means of the rubber strip 22' and the rod 24 to the bar 26.

I have found that by utilizing this particular rack for a tying-in machine, that the machine operates more successfully by reason of the fact that the warp threads of the upper and lower bank may be continually held in proper alignment with one another while they are also held under proper tension. The result is that the warp threads when thus held are more readily picked up by the selector head of the tying machine and less errors are made, such as the selection of only one thread or more than two threads. 1

While I have only shown a small number of Warp threads 30 and 34, it will be understood that while the device is in use the entire length of the bars 12, M, 26 and 28 will be filled with warp threads which will be held in proper position and condition to be picked up and tied together by a tying machine. It will also be understood that there is no limit to the length of the bars I2, I4, 26, and 28. These bars may be made any desirable length, their length being dependent on the width of the warps to be held and tied.

It will be understood that there may be slight changes made in the construction of this device, without departing from the spirit of the invention.

1. In a'rack for tying-in machines, a set of bars for holding warp threads, a set of similar bars disposed above the first named bars, and means for moving said second set of bars longitudinally of the first-mentioned set of bars, said means consisting of a hand wheel, a worm gear, a shaft which is rotated by the rotation of the Wormgear, and a rod secured perpendicularly to the-shaft and movably to the said second set of bars.

2 .-In a rack for tying-in machines, a set of bars'in spaced apart relation for holding warp threads, a set of bars in spaced apart relation arranged above the first-mentioned bars, and means for pivotally and laterally removing the said second set of bars from their position above the first-mentioned set of bars.

, 3. A rack for warp tying machines including two sets of bars in spaced apart relation for holding warp threads, one set arranged above the other, and means for pivotally swinging one set of bars from their position above the other set of bars.

4. A rack for warp tying machines, including a. frame, two sets of thread holding bars, one set slidable longitudinally of the other, a shaft extending transversely of the frame, a rod extending transversely of said shaft and connected to one set of thread holding bars, and means for turning said shaft.

5. A rack for warp tying machines including two sets of thread holding bars, one set slidable longitudinally of the other, a shaft extending transversely of a frame upon which said bars are mounted, a rod extending transversely of said shaft and connected with said slidable thread holding bars, and means for turning said shaft.

6. In a rack for tying-in machines, bars in spaced-apart relation, rods frictionally engaging said bars for securing warp threads thereto, a second set of bars and rods spaced apart and positioned above said first-mentioned set of bars and rods, and means connected with one bar in each set of bars for turning said bar to adjust the tension of the warp-threads held thereby.

'7. In a rack for tying-in machines, a bar having a longitudinal groove therein, a rod adapted to frictionally engage said groove and secure warp threads therein, a cylindrical bar having a similar groove and bar in spaced apart relation to and in the same horizontal plane with said bar, and means associated with said cylindrical bar for turning said bar and rod on its axis to effect an adjustment of the tension of the threads held by said bars and rods.

8. In a warp-tying machine having a main supporting frame and two pairs of thread clamps for supporting respectively upper and lower series ,1

of Warp threads with the clamps of each pair disposed on opposite sides of said frame, a support pivotally mounted on said frame and carrying at least one of the clamps for supporting the upper series of threads, said support being swingable to carrysaid one clamp upwardly away from the corresponding clamp of the other pair and 1' ill) 10. In a warp-tying machine, the combination of an elongated supporting frame, and means for supporting two series of warp threads invertically spaced relation and in a position to be operated upon by a tying mechanism, saidmeans including two thread-holding clamps 'arrangedin parallel relation at one side of the name: and having thread-engaging surfaces disposed one above the other, a supporting arm. having an upright end portion pivotally supported on the frame and a horizontal portion overlying the frame and carrying the clamp having the uppermost thread-engaging surface, and a'member carried by said frame for supportingthe lastmentioned clamp in a horizontal position, parallel to the other clamp, saidarm being swingable to carry the clamp thereon upwardly into an outof-the-way position relative to said other clamp.

HUGH P. 

